Lock



A. LASKY.

LOCK.

APPLICATION FILED SEPLZB, |920.

` 1,375,521. Patented Apr. 19, 1921..

j ZA

WHA/5885s W VENTO NIHOWAKY A TTOHNEVS UNITED Asra'iesf sereni orifice."

ANTHONY LAsxY, or Bniiienroiir, CONNECTICUT.l

LOCK.

1,375,521. specification of nettersratent. PatentedApr. 19,1921 a Y Application filed September 28, ,1920. Serial No. 413,304. i Y

- To all whom t may concern Be it knownthat I, ANTHONY LAsKx, a

:citizen of the Unitedv States, and a resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a newand Improved Lock, ofwhich the following is a full, clear,l and exact description.

similar articles and arranged to prevent picking of the lock and opening of the trunk by unauthorized persons.

VAnother object is to provide a lockv of simple and durable' construction and onen `that is not liable to get easily out of order.

With these and other objects in view, the

linvention consists of certain novelfeatures of constructionv'as hereinafter shown and described and then specifically pointed outY inthe claims.

A practical embodimentof the invention is represented in the 'accompanying drawings forming apart of this specication, in`

whichl similar characters of reference indispindle ;Y and cate corresponding -part/sin all the views. Y'Figurel isa sectional side elevation of the improved lock as applied and with the `key 'shown in withdrawn position;

Fig. 2 is a cross section of the improved lock lonthe line 2'-2of Fig. 1;

Fig; V3 is a planV view- 'of'- the'locking Fig. 4 is a reduced front elevation of the locking applied and Ywith the parts in locked 4o position. Y

-' The trunk on whichthe lock isshown applied comprises the usual body 10 V'and a coverll, and on the'saidbody 10 is secured the leaf 12 of Vajhinge -13' provided with a leaf'14, -to the rear face of which is seil curedthev lock casingY 15 by rivets or'other suitable" fasteningY devices 16. The casingv 15 V`is adapted to pass into a cylindrical keeper 2O 4fed into' an'opening 21 formed in the cover 11, as 4plainly shown in Fig. 1,` and the said keeper is provided atits frontv with a hange 22 fastened by rivets or other f fastening devices 23 to the Vcover A11.

front and rear casing`V members 25, 26,Y of which the front casing member l25 is provided with a hub 27 extending through an' i opening 28 formed in the leaf 14 .of the hinge 13. yIn the casing members 25 and 26 is Journaled a locking'spindle 30 provided at its frontend with a collar 31'f1ush at the outer face withthe forward end of the Vhub 27'7 anduthis collar 31,is concentric with the hub 27 and is adapted to receive the' tubular shank 35 of a key 36 vhaving a suitablehandle 37 to permit the user Ato yconveniently manipulate the key,'as hereinafter more fully explained.

The forward end of the shank v35 of the l key 36-is provided with bits 38' and the said shank 35 is provided onits peripheral face with a `lug 39 adapted to pass through afslot 40 formed'inthe'innerface lofthe head 2 7 to guidethe shank 35when inserted 'into the lock, that is, onto vthe collar Y 31 of the locking spindle 30,.`V The rear end 42 of the locking spindle 30 is preferably Y ina-de polygonal to carry a locking member .43, preferably of elliptical shape (see Fig.

4) and adapted to pass through'a correspondingly shaped opening v44 formed in the back 45 of the keeper 20." Itis under-l stood that after the locking member 43 has passed through the opening 44 and about a quarter turn is given -to;'the spindle 30 'by the key 36, asr hereinafter more fully explained, then the locking member-43 engages the back V45 ofthe keeper 20"""tlius 'holding the locking member lin locking position.

A rIhe spindle' 30 is provided intermediate 4the collar 31 and the polygonal end' 42`with an enlargedfportiony provided VinY its VVadapted to beengaged bythe corresponding bits 38 ofthe key1'36, land the `s aid peripheral face with longitudinally extend# .inggrooves 51 leading toopenings '5 2 arioo tumbler pins 55 are'normarllyf'held in'forward position 'by` spring 56 extending' in the vrecesses 51 andabuttiiig with their rearl ends against the ixedcasing member'26.

.The tumbler pins 55 are provided at their rearends with angular 'arms 57 normally engaging recesses 53 formed in the rear face of the casingV member 25' thusholding the locking spindle 30against turning.'" The "Within the lock casing 15V are secured 55` which are adapted to pass the angulararms 57 on pushing the tumbler pins 55 the corresponding distance rearwardly by the in-A sertion of the proper key. It willbe noticed `that when the arms 57 eXtendin the cham-" ber 59 the swpindle 30 is turned on turning i i the ke`y|36 owing to the bits 38 engaging inthe forward face ofthe` casing member A`the forward ends of the tumbler pins 55.

The angular arms 57 of the tumbler pin 55 are adapted to pass into recesses 6l formed Q6 whenever the tumbler pins55 are pushed ing turned incase any `oneof the angular arms 57 `engages a `corresponding recess 61 too far rearward on the insertion of awrong key. Thus the spindle is nory mally held against being turned by the angular arms 57 engagingthe notches 58 and the spindle is also prevented `from bein the casingmember 26. `The spindle 30 can only b e turnedY when theangular arms i 57 i extend lnto the annularchamber 59. It`

`is understoodthat the recesses 58 and 61 -are in register with eachother. v

In` practice, the tumbler pins 55 `are alike in length, but the openings 524 through which the tumbler `pins pass are of different flength so that the forward ends 0f the several tumbler pins 55 are out of register, that is, are indifferent transverse planes `for engagement with the correspondinglyv tubular shank l of stepped bits 88 of the `l-Iaving thusdescribed my invention, I

a Aspindle mounted togfturnin the casing ing member, and a plurality of spring 'y pressed and sliding tumblers mounted `in the spindle, the said `tumblers having angular members adapted to engage` either ofthe recesses `of the membersvto `prevent turningl 1 Yim `of the spindle and to enter the spacebetween f the said members Qspindle.` 5()` mounted to turn inthe said casing members 2. In a elongated openinginits back plate, a lock and` having a locking member adapted-to passthrough the opening .of the i keeper to i engage the back thereof-on turning the spiny dle, and spring-pressed tumbler pins slidable lengthwise on the said spindle and having i (angular u arms normally engaging the re- Lfcesses 1n one of `the said `casing members,

`adapted to passuintothe space between the' said member and into the recesses of the lother casing member. i

Vlock, a fixed `keeper having an.

3. In a lock, a lock casing provided with fixed front and rear members spaced apart and of `which `the frontmember is provided with a hub having a bit slot on the inner face, thev opposing facesof said members having alined recesses, a locking spindle 'mounted to turn in the said 'casing members and havingits frontend extending into the said hub, spring-pressed tumbler pins slidable lengthwise` on the said l spindley and adapted tobe controlled'byma key engaging the forward end of the spindle, the said" tumbler pins having angular arms adapted Y to engage/either ofthe yrecesses of thesaid casing members to hold the locking spindle against turning or to pass into the space between the said casing membersto allow of turning the locking spindle.` v

4. In `a lock, a keyfhaving a tubularshank provided at the forward end with bits and at the peripheral face with av lug, a keeper having an elongated opening, a casing eX- v tending into the keeper and-provided with ixedffrontand rear members having their i opposite faces spaced apart 'and pro-vided with registering recesses in their opposing faces', the said forward casing member having ahub adaptedtorreceive thekey shank,

the hub'having a slot for the-passage of the said shank lug, a'ilocking spindle-mounted to turn in the said casing members, andV provided with a .lockingfmember adapted to pass through the Vopening of Vthekeeper and engage theback thereof, and VAspring-pre'ssed tumbler pins slidable lengthwise on'the said spindleand adapted to be'engaged by the? said 'key bits, the said tumbleri pins having angular arms normally engaging the saidrearms being adapted to pass into the space between the casingmembers. to, allow of turning .the locking spindle on the insertion of the proper key and the said arms being cesses in' the frontcasingmember, the said,-V

adapted to 'pass into the recesses of the rearI i casing .memberY to preventY turning `of the 5.' In key having shank locking spindle on the insertionof'a wrong y to permitturning of said provided at the forward end withy bits and` at the peripheral' face with a lug, acasing provided with iXed front and rear` members having their opposite faces spaced apartand` provided with'registeringrecesses in,the opposing faces, the said forward casing mem;` Vber having a hub adapted to receivethefkey shank, the hub projectingthrough the cassaidshank lug, alocking spindle mounted totnrn. in the said "casing members, spring pressed :tumbler `pins slidable lengthwise on thesaid spindleand adapted to be engaged said recesses in the front casing member, thesaid `arms being adaptedto pass into the Ving and having a slot for the passage ofthe i space between the casing members to allow the rear end of the seid locking spindle,

of turning the locking spindle on the inseranda keeper in which the lock casing eX- tion of the proper key and the said arms tends ,said keeper having an elongated open- 10 being adapted to pass into the recesses of the ing vthrough which the seid locking member 5 rear casing member to prevent turning of ofthe locking spindle is adapted to extend the locking spindle on the insertion of e and engage the back of the kee er.

Wrong key, an elongated locking member on ANTHON LASKY. 

